diff options
| -rw-r--r-- | fs/smb/client/cifssmb.c | 3 | ||||
| -rw-r--r-- | fs/smb/client/link.c | 3 | ||||
| -rw-r--r-- | fs/smb/client/smb2inode.c | 8 | ||||
| -rw-r--r-- | fs/smb/client/smb2ops.c | 4 |
4 files changed, 15 insertions, 3 deletions
diff --git a/fs/smb/client/cifssmb.c b/fs/smb/client/cifssmb.c index 4fc9485c5d91..364ab7573b36 100644 --- a/fs/smb/client/cifssmb.c +++ b/fs/smb/client/cifssmb.c @@ -2709,6 +2709,9 @@ int cifs_query_reparse_point(const unsigned int xid, if (cap_unix(tcon->ses)) return -EOPNOTSUPP; + if (!(le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS)) + return -EOPNOTSUPP; + oparms = (struct cifs_open_parms) { .tcon = tcon, .cifs_sb = cifs_sb, diff --git a/fs/smb/client/link.c b/fs/smb/client/link.c index 6e6c09cc5ce7..a88253668286 100644 --- a/fs/smb/client/link.c +++ b/fs/smb/client/link.c @@ -643,7 +643,8 @@ cifs_symlink(struct mnt_idmap *idmap, struct inode *inode, case CIFS_SYMLINK_TYPE_NATIVE: case CIFS_SYMLINK_TYPE_NFS: case CIFS_SYMLINK_TYPE_WSL: - if (server->ops->create_reparse_symlink) { + if (server->ops->create_reparse_symlink && + (le32_to_cpu(pTcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS)) { rc = server->ops->create_reparse_symlink(xid, inode, direntry, pTcon, diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c index 826b57a5a2a8..e9fd3e204a6f 100644 --- a/fs/smb/client/smb2inode.c +++ b/fs/smb/client/smb2inode.c @@ -1273,6 +1273,14 @@ struct inode *smb2_get_reparse_inode(struct cifs_open_info_data *data, int rc; int i; + /* + * If server filesystem does not support reparse points then do not + * attempt to create reparse point. This will prevent creating unusable + * empty object on the server. + */ + if (!(le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS)) + return ERR_PTR(-EOPNOTSUPP); + oparms = CIFS_OPARMS(cifs_sb, tcon, full_path, SYNCHRONIZE | DELETE | FILE_READ_ATTRIBUTES | diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 6958825431af..a700e5921961 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -5229,7 +5229,7 @@ static int smb2_make_node(unsigned int xid, struct inode *inode, const char *full_path, umode_t mode, dev_t dev) { struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); - int rc; + int rc = -EOPNOTSUPP; /* * Check if mounted with mount parm 'sfu' mount parm. @@ -5240,7 +5240,7 @@ static int smb2_make_node(unsigned int xid, struct inode *inode, if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { rc = cifs_sfu_make_node(xid, inode, dentry, tcon, full_path, mode, dev); - } else { + } else if (le32_to_cpu(tcon->fsAttrInfo.Attributes) & FILE_SUPPORTS_REPARSE_POINTS) { rc = smb2_mknod_reparse(xid, inode, dentry, tcon, full_path, mode, dev); } |